Cooling plant for coke



-A. MOET-rsu COULING PLANT FOR COKE Nov. 17 1925.

, Filed A111. 14 1923 Patented Nov. 17, 1925.

y UNITED STATES .PATENT ARNOLD MOETTELI, OF WINTEBTIIUR, SWITZERLAND, AssIGNon To 'sULzEIt Iinrfin'iis` SOCIT ANONYME, or WINTERTHUR, sWITznRLAND, A oOI'tI'fOnATIONIOI" 'fsW'IT- ZERLAN D.

COOLING PLANT FOR Aooirn'l Application led August 14, 1923. Serial No. 657,284.

To all whom it may concern Be it known that I, ARNOLD MOETTELI, a citizen of Switzerland, residing at Winterthur, Switzerland, Alte Itomerstrasse 21, have invented certain new and useful Improvements in Cooling Plants for Coke, of which the following is a specification.

The invention relates to a cooling plant for coke, in which the incandescent coleis cooled by means of a current of gas circulated through a heat exchanging device. It consists in that the speed of flow of the gas current is regulated by means of a device, which automatically adjusts itself in accordance with the heat to be given up, and also controls the fan. The device controlling the fan is thus controlled by the temperature of the coke. v

On the drawing one mode of construction of the device according to the invention is illustrated.

a is the cooling chamber, b the charging opening c the discharge o utlet of a cooling receptacle adapted to receive the coke. The charging opening can of a movable hood Z and the discharge outlet by a trap-door e. The cooling of the coke, as well as the utilization of the heat derived from it, is effected by the fan f forcing the gaseous contents'of the cooling receptacle in a closed circuit through the channel g, the pipe h, the boiler z and the coke.

As the rate of exchange of heatY to the said boiler depends on the speed of'flow of the gas, but will fluctuate greatly with the temperature of the coke if the speed of flow of the said cooling gas remains constant, the

plant is provided according to the invention with a device adapted for varying the speed of flow of the gas, the said speed being controlled during the cooling operation in such a manner, that the variations in the rate of heat exchange caused by fluctuations in the temperature of the coke are compensa-ted automatically. The said device consists of an arrangement actuated by the lever c and serving for varying the supply of energy to the motor driving the fan. The arrangement is such, that the supply of energy and `the speed Aof the cooling gas increase when the said lever is raised, and decrease when the lever is lowered. The automatic adjustment of the lever c is eected by the expan- 'm and the rod Vo.

be closed by means.

heat to accord with the amount of heat re-' quired at the moment for the boiler, kthe pivot m of the lever n is connected with the piston s moving in the cylinder r by means of the link p and a further lever g, the lower side of the piston s being subjected to boiler pressure and the upper side. loaded with a spring. If the boiler pressure rises or falls in consequence of the reduced or increased consumption of steam, the piston too will rise and fall respectively and in this manner will cause by adjustment of the levers m and Ze a reduction or increase in the rate at which heat is transferred to the boiler in accordance with the variations in steam consumption. In this manner it is possibley to adjust automatically the heat to be transferred to the boi-ler so as to correspond with the heat required by the boiler. Obviously,

the regulating device may be of any other suitable type.

I claim:

l. In an apparatus for cooling incandescent coke by means of gases forced by a motor driven blower through the charge of coke in a container and through a boiler, the combination of the motor with a device for varying the speed of the motor, said device being automatically controlled by a thermostat under the influence of the mean temperature of the coke and by a regulating device under the influence of the steam produced in the boiler, whereby the blower is so driven that the Speed of the cooling gases and the heat transmitted to the boiler corresponds at all times to the heat required by the boiler. j f

2.y In an apparatus for cooling incandescent coke by means of gases forced through the charge of coke in a. container 'and through a boiler, thel combination ofa motor driven blower forcing coke and boiler, a controller device for vary- 'ing the speed of the motor, a thermostat gases through theV actuated vin accordance with the mean averthe rod to the motor controller whereby the age temperature of the coke vand colnimuni- -ITOIOWGI S LdlVeIl 2113 2l ,SPBG/d Variabile With @ating its motion to a rod7 a Steam pressure Varying temperatures of coke and ypressure 10 gaugeconnected to the bolena rod operated A0f Steam- 1 l K l l 5 by Sai@ gang@ and means for integrating the In ftestmony 'wvheneef I have fflny motion of the thermostat rod and gauge rod Signatur@ l Y' e for transmitting the integrated motion of ARNOLD -M-ETTELI. 

